all: add type to customize how to dump HTTP request and response

The HTTPRequestDumper define an handler to convert [http.Request] into
[RunResponse] DumpRequest.

The HTTPResponseDumper define an handler to convert [http.Response]
into [RunResponse] DumpResponse.

1 files changed, 29 insertions, 0 deletions

diff --git a/http_response_dumper.go b/http_response_dumper.go
new file mode 100644
index 0000000..541970c
--- /dev/null
+++ b/http_response_dumper.go
@@ -0,0 +1,29 @@
+// SPDX-FileCopyrightText: 2024 M. Shulhan <ms@kilabit.info>
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package trunks
+
+import (
+	"bytes"
+	"fmt"
+	"net/http"
+	"net/http/httputil"
+)
+
+// HTTPResponseDumper define an handler to convert [http.Response] into
+// [RunResponse] DumpResponse.
+type HTTPResponseDumper func(resp *http.Response) ([]byte, error)
+
+// DumpHTTPResponse define default [HTTPResponseDumper] that convert
+// [http.Response] with its body to stream of bytes using
+// [httputil.DumpResponse].
+//
+// The returned dump have CRLF ("\r\n") replaced with single LF ("\n").
+func DumpHTTPResponse(resp *http.Response) (raw []byte, err error) {
+	raw, err = httputil.DumpResponse(resp, true)
+	if err != nil {
+		return nil, fmt.Errorf(`DumpHTTPResponse: %w`, err)
+	}
+	raw = bytes.ReplaceAll(raw, []byte{'\r', '\n'}, []byte{'\n'})
+	return raw, nil
+}